1 import javax.swing.*;
   2 
   3 import java.awt.*;
   4 
   5 public class TecladoCelular {
   6 
   7     public static void main (String[] args){
   8 
   9         JFrame panel = new JFrame (!"Teclado de Celular"); 
  10 
  11         JFrame panel2 = new JFrame ("Pantalla de Celular");
  12 
  13         JTextField pantalla = new JTextField (20);
  14 
  15         JButton boton0 = new JButton ("0");
  16 
  17         JButton boton1 = new JButton ("1");
  18  
  19         JButton boton2 = new JButton ("2");
  20 
  21         JButton boton3 = new JButton ("3");
  22 
  23         JButton boton4 = new JButton ("4");
  24 
  25         JButton boton5 = new JButton ("5");
  26  
  27         JButton boton6 = new JButton ("6");
  28 
  29         JButton boton7 = new JButton ("7");
  30 
  31         JButton boton8 = new JButton ("8");
  32 
  33         JButton boton9 = new JButton ("9"); 
  34 
  35         JButton botonNumeral= new JButton ("#");
  36 
  37         JButton botonAsterisco= new JButton ("*");
  38 
  39         panel.setLayout(new GridLayout (4,3));
  40 
  41         panel2.add(pantalla);
  42 
  43         panel.add(boton1);
  44 
  45         panel.add(boton2);
  46 
  47         panel.add(boton3);
  48 
  49         panel.add(boton4);
  50 
  51         panel.add(boton5);
  52 
  53         panel.add(boton6);
  54 
  55         panel.add(boton7);
  56 
  57         panel.add(boton8); 
  58 
  59         panel.add(boton9);
  60 
  61         panel.add(botonNumeral);
  62 
  63         panel.add(boton0);
  64 
  65         panel.add(botonAsterisco);
  66 
  67         panel.setVisible(true);
  68 
  69         panel.setSize(210,300);
  70 
  71         panel2.setSize (210,150);
  72 
  73 
  74 == Ventana con boton y area de texto ==
  75 
  76 /codigo para crear un ventana con un boton y un area de texto
  77 public class PanelTextoBoton {
  78 
  79         public static void main(String[] args) {
  80                 JFrame panel= new JFrame("Campo textoboton");
  81 
  82                 JTextArea areaTexto= new JTextArea(10,10);
  83 
  84                 JButton boton= new JButton("Oprima");
  85 
  86                 panel.setLayout(new FlowLayout());
  87 
  88                 panel.add(areaTexto);
  89 
  90                 panel.setForeground(Color.blue);
  91 
  92                 panel.add(boton);
  93 
  94                 panel.setVisible(true);
  95 
  96                 panel.setSize(200,600);
  97        
  98         }  
  99 }